Compression shotgun cartridge

Abstract

A shotgun casing tube supporting a metal butt end connected containment cup, mounted to the casing tube outer wall, supporting an eject disc, supporting in a percussion cap centrally locate by crimp within a port. A multi-slot fingered antifriction cup is fitted into the casing cup with its floor resting on a powder filled basin at bottom of casing tube. A compressible compression rod conforming to the remaining depth of the casing tube is bonded central to a compression rod base plate, sitting on the floor of the antifriction disc inside a steel shot casing fill sealed in by crimping over extended casing tube end, ready for firing. Another embodiment fill of the shotgun cartridge includes a multi-fingered compressible compression cup bonded to the internal wall of the antifriction cup fingers, matching finger to finger bond. Another embodiment fill includes a tracer powder filled tracer tube, beveled at the leading end open port. The base end of which supports equidistant air fins around the outer circumferential wall to promote true air flight. Exhaust ports are stationed equidistant between fins for powder expulsion in flight. A tracer tube dead end cap sealing in tracer powder rests on the floor of the antifriction cup. A steel shot charge is loaded and sealed in by a crimping the cartridge case muzzle end.

What is claimed is:  
     
       1. A tracer tube adapted to be centrally located within a shotgun cartridge comprising: 
       a hollow body having a cylindrical wall, a longitudinal axis, and upper and lower ends;  
       said upper end of said hollow body having a beveled cap attached thereto, said cap having an opening in a central part thereof, said opening communicating the interior of said hollow body with the exterior thereof;  
       said lower end of said hollow body having an end cap closing communication between the interior of said hollow body and the exterior thereof;  
       a plurality of exhaust ports extending through said hollow body adjacent said lower end thereof, said exhaust ports communicating the interior of said hollow body with the exterior thereof;  
       a plurality of air foil fins attached to said hollow body adjacent the lower end thereof; and  
       a non-flammable, non-polluting tracer powder packed within the interior of said hollow body.  
     
     
       2. The tracer tube of claim  1  wherein said tracer powder is calcium carbonate. 
     
     
       3. The tracer tube of claim  1  wherein said fins have major planes that intersect said longitudinal axis of said hollow body. 
     
     
       4. In a shotgun cartridge having a casing, a butt end metal cap, a cartridge eject plate including a percussion cap, a powder basin filled with ignitable gun powder, an antifriction cup located above the powder basin, steel shot located in the antifriction cup, and a cartridge cap disc crimp sealed to the casing, the improvement comprising positioning a tracer tube in the longitudinal center of said antifriction cup, said steel shot surrounding said tracer tube, said tracer tube comprising: 
       a hollow body having a cylindrical wall, a longitudinal axis, and upper and lower ends;  
       said upper end of said hollow body having a beveled cap attached thereto, said cap having an opening in a central part thereof, said opening communicating the interior of said hollow body with the exterior thereof;  
       said lower end of said hollow body having an end cap closing communication of the interior of said hollow body with the exterior thereof;  
       a plurality of exhaust ports extending through said hollow body adjacent said lower end thereof, said exhaust ports communicating the interior of said hollow body with the exterior thereof;  
       a plurality of air foil fins attached to said hollow body adjacent the lower end thereof; and  
       a non-flammable, non-polluting tracer powder packed within the interior of said hollow body.  
     
     
       5. The cartridge of claim  4  wherein said tracer powder is calcium carbonate. 
     
     
       6. The cartridge of claim  4  wherein said fins have major planes that intersect said longitudinal axis of said hollow body.